Environmental Design & Evidence-Based Capstone — Drills · Grade 12 Science
Chapter: Conservation, Systems & Environmental DesignWhat these drills covers
By the end of Environmental Design & Evidence-Based Capstone you should be able to:
- I can compare a baseline and alternatives using explicit criteria and calculations.
- I can plan sensitivity analysis and monitoring that addresses confounding variables.
2 questions, numeric and written answer, each with a worked explanation.
Vocabulary used: baseline, sensitivity analysis, simple payback.
Problem 1
A20W reduction runs 1500h/year. Find saved energy.
Hints
Write the relationship first; substitute with consistent units.
Answer and explanation
30 kWh/year
.020×1500=30.
Problem 2
Why keep a baseline in a comparison?
Answer and explanation
It makes change and added benefit measurable rather than assuming every new option is better.
Response criteria
- State a scientifically accurate conclusion.
- Show the calculation or mechanism that supports it.
- Include units, conditions, or limits where relevant.